我想在heroku上填充我的应用程序，所以我需要播放我在Amazon S3上传的图像，我无法弄清楚如何做...
我正在使用Carrierwave，带有多个文件上传器
以下是我的强参数：
private
def article_params
params.require(:article).permit(:id, :title, :description, {attachments:[]})
end
以下是我尝试为heroku播种的方法，如何将网址设为种子？
Article.create!(
title: Faker::Music.instrument,
description: Faker::Lorem.paragraph(3),
attachments:
[ "https://s3-eu-west-1.amazonaws.com/mysite/images_site/seeds/image_1.jpg",
"https://s3-eu-west-1.amazonaws.com/mysite/images_site/seeds/image_2.jpg"]
)
end
这就是我在本地播种的方式，它运行正常。
20.times do
Article.create!(
title: Faker::Music.instrument,
description: Faker::Lorem.paragraph(10),
attachments:
[ Rails.root.join("app/assets/images/seeds/image_1.jpg").open,
Rails.root.join("app/assets/images/seeds/image_2.jpg").open,
Rails.root.join("app/assets/images/seeds/image_3.jpg").open,
].shuffle)
print "_"
end
在卡洛斯拉米雷斯三世的建议之后，它仍然失败:(
➜ lesch git:(master) ✗ heroku run rails db:seed --trace [2.4.4]
Running rails db:seed --trace on ⬢ new-lesch... up, run.1313 (Free)
** Invoke db:seed (first_time)
** Execute db:seed
** Invoke db:abort_if_pending_migrations (first_time)
** Invoke db:load_config (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:load_config
** Execute db:abort_if_pending_migrations
D, [2018-09-15T13:55:37.031136 #4] DEBUG -- : (7.1ms) SELECT "schema_migrations"."version" FROM "schema_migrations" ORDER BY "schema_migrations"."version" ASC
rails aborted!
ArgumentError: extra arguments
/app/vendor/ruby-2.4.4/lib/ruby/2.4.0/open-uri.rb:136:in `open_uri'
/app/vendor/ruby-2.4.4/lib/ruby/2.4.0/open-uri.rb:721:in `open'
/app/vendor/ruby-2.4.4/lib/ruby/2.4.0/open-uri.rb:35:in `open'
/app/db/seeds.rb:17:in `block in <main>'
/app/db/seeds.rb:12:in `times'
/app/db/seeds.rb:12:in `<main>'
/app/vendor/bundle/ruby/2.4.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:50:in `load'
/app/vendor/bundle/ruby/2.4.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:50:in `load'
/app/vendor/bundle/ruby/2.4.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:281:in `block in load'
/app/vendor/bundle/ruby/2.4.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:253:in `load_dependency'
/app/vendor/bundle/ruby/2.4.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:281:in `load'
/app/vendor/bundle/ruby/2.4.0/gems/railties-5.2.1/lib/rails/engine.rb:551:in `load_seed'
/app/vendor/bundle/ruby/2.4.0/gems/activerecord-5.2.1/lib/active_record/tasks/database_tasks.rb:281:in `load_seed'
/app/vendor/bundle/ruby/2.4.0/gems/activerecord-5.2.1/lib/active_record/railties/databases.rake:194:in `block (2 levels) in <main>'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/task.rb:271:in `block in execute'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/task.rb:271:in `each'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/task.rb:271:in `execute'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/task.rb:213:in `block in invoke_with_call_chain'
/app/vendor/ruby-2.4.4/lib/ruby/2.4.0/monitor.rb:214:in `mon_synchronize'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/task.rb:193:in `invoke_with_call_chain'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/task.rb:182:in `invoke'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:160:in `invoke_task'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:116:in `block (2 levels) in top_level'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:116:in `each'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:116:in `block in top_level'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:125:in `run_with_threads'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:110:in `top_level'
/app/vendor/bundle/ruby/2.4.0/gems/railties-5.2.1/lib/rails/commands/rake/rake_command.rb:23:in `block in perform'
/app/vendor/bundle/ruby/2.4.0/gems/rake-12.3.1/lib/rake/application.rb:186:in `standard_exception_handling'
/app/vendor/bundle/ruby/2.4.0/gems/railties-5.2.1/lib/rails/commands/rake/rake_command.rb:20:in `perform'
/app/vendor/bundle/ruby/2.4.0/gems/railties-5.2.1/lib/rails/command.rb:48:in `invoke'
/app/vendor/bundle/ruby/2.4.0/gems/railties-5.2.1/lib/rails/commands.rb:18:in `<main>'
/app/vendor/bundle/ruby/2.4.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
/app/vendor/bundle/ruby/2.4.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
/app/vendor/bundle/ruby/2.4.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
/app/vendor/bundle/ruby/2.4.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
/app/vendor/bundle/ruby/2.4.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
/app/vendor/bundle/ruby/2.4.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `block in require'
/app/vendor/bundle/ruby/2.4.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:253:in `load_dependency'
/app/vendor/bundle/ruby/2.4.0/gems/activesupport-5.2.1/lib/active_support/dependencies.rb:287:in `require'
/app/bin/rails:9:in `<main>'
Tasks: TOP => db:seed
在本地示例中，您在文件路径上调用.open，该路径读取文件并返回File对象。
在远程示例中，您只是传递URI路径，它们是字符串，而不是像File这样的I / O对象。
要直接从URI路径读取远程文件，可以使用open模块提供的OpenURI方法。
open("https://s3-eu-west-1.amazonaws.com/mysite/images_site/seeds/image_1.jpg”)
阅读此处的文档： https://ruby-doc.org/stdlib-2.1.0/libdoc/open-uri/rdoc/OpenURI.html
注意：如果您不使用Rails，则可能必须添加require "open-uri"
您可以通过使用open包装远程URI字符串来修复Heroku示例，如下所示：
Article.create!(
title: Faker::Music.instrument,
description: Faker::Lorem.paragraph(3),
attachments:
[ open("https://s3-eu-west-1.amazonaws.com/mysite/images_site/seeds/image_1.jpg”),
open("https://s3-eu-west-1.amazonaws.com/mysite/images_site/seeds/image_2.jpg”)]
)
end
只需以更手动的方式创建数据库记录。您需要确保S3密钥与生成密钥结构的CarrierWave实例匹配。